Annoying mobile ads,
blocked for good.

It blocks the ads shown in your browser apps, all at once. Pages load faster and become easier to read, and because trackers are blocked too, it also saves mobile data.

It blocks connections to the domains that serve ads and trackers at the “DNS” doorway. Everything happens on your device; the contents of your traffic are never sent to any outside server.

Android phones and tablets.

To make DNS blocking work in every browser, it uses a “local VPN” that runs entirely inside your device. It never connects to any outside VPN server, and the contents of your traffic never leave your device.

Only one VPN or ad-blocking app can run at a time, so using another such app can disconnect Phone Guardian. If your device’s battery optimization keeps stopping it, excluding Phone Guardian from battery optimization will make it stable.

This can happen when the guard is off, when old pages remain in the browser cache, or when the browser’s “Secure DNS (encrypted DNS)” is enabled. Turn the guard on, clear your browser cache, and check your browser’s Private DNS settings.

Phone Guardian focuses on removing web ads. It never removes ads inside apps such as YouTube or games. Ads that can only be removed with a paid membership are also out of scope. In addition, ads served from the same domain as the site itself, or embedded directly in videos, cannot always be stopped by DNS blocking alone.

A blank space is where an ad used to be — proof that blocking is working. The layout may look slightly shifted, but no ad is displayed there.

Phone Guardian also stops invisible trackers and background connections. A single ad can trigger several connections, and each one is counted, so the number grows quickly.

It is not a subscription. You can try every feature free for 3 days. To keep using it, make a one-time purchase (pay once — 300 Japanese yen, tax included). Once purchased, you can use it forever with no further payments. With the same Google account there is no need to buy it again after changing phones — just tap “Use on this device” on the purchase screen of the new phone. Note that it can be used on only one device at a time.

There is no difference in features. During the free trial and after purchase, everything works exactly the same. We simply ask you to make the one-time purchase if you wish to continue after the trial — nothing is added or restricted.

No. Ad detection happens entirely on your device; we never collect your browsing activity or send it anywhere.

Yes. Blocking ads and trackers reduces the data used per page. The more ads a site has, the bigger the savings.

Yes. However, one purchase can be used on only one device at a time, so if members of your family are to use it on their own devices at the same time, please buy it for each device. When you change to a new phone yourself, there is no need to buy it again: with the same Google account, just tap “Use on this device” on the purchase screen of the new phone and it moves over with no further payment (it then stops on the previous device). Every device can start with the free trial first.

Use the contact form below (the app’s “Contact us” opens the same form). Please enter your name, email address, and message. We will reply to the email address you provide.